SQL qeury with count and sum functions

I have a table that has sales figures by booth. I want to sum up the sales for each day in one column then hav e the count of the number of booths that did not report sales in the next column (sales would be zero) This query works fine but I don't know how to add the count of the number of booths with zero sales.

sql syntax differs depending on the database you are using please always state which database (version & OS ) you are using

the following is a generic sql example rather than the "access" IIF example previously given

you also "need to use " an outer join since if th booth has zero sales then it wont have any "sales/Event" rows for that day/event i use distinct in the count since you've given no information on the booth table definition/structure...
so i can't assume that boothid is the primary key...

again provide background info on your table structures to allow us to give a more complete answer